{"city":"Bülach","country":"Switzerland","lat":47.521968841552734,"lon":8.54049015045166,"range":"48h","license":"CC BY 4.0","source":"https://cerns.io","hourly":[{"datetime_utc":"2026-05-28T01:00:00Z","aqi":37,"aqi_min":37,"aqi_max":37,"pm25":8.956249237060547,"pm10":9.167437553405762,"stations":4},{"datetime_utc":"2026-05-28T02:00:00Z","aqi":36,"aqi_min":36,"aqi_max":36,"pm25":8.705363273620605,"pm10":10.029266357421875,"stations":4},{"datetime_utc":"2026-05-28T03:00:00Z","aqi":45,"aqi_min":45,"aqi_max":45,"pm25":10.731197357177734,"pm10":11.448793411254883,"stations":4},{"datetime_utc":"2026-05-28T04:00:00Z","aqi":42,"aqi_min":42,"aqi_max":42,"pm25":10.005127906799316,"pm10":10.624151229858398,"stations":4},{"datetime_utc":"2026-05-28T05:00:00Z","aqi":45,"aqi_min":45,"aqi_max":45,"pm25":10.75246524810791,"pm10":11.159236907958984,"stations":4},{"datetime_utc":"2026-05-28T06:00:00Z","aqi":29,"aqi_min":29,"aqi_max":29,"pm25":7.071106433868408,"pm10":7.718688488006592,"stations":4},{"datetime_utc":"2026-05-28T07:00:00Z","aqi":24,"aqi_min":24,"aqi_max":24,"pm25":5.832558631896973,"pm10":6.053476333618164,"stations":4},{"datetime_utc":"2026-05-28T08:00:00Z","aqi":20,"aqi_min":20,"aqi_max":20,"pm25":4.769410133361816,"pm10":4.884201526641846,"stations":4},{"datetime_utc":"2026-05-28T09:00:00Z","aqi":14,"aqi_min":14,"aqi_max":14,"pm25":3.366018295288086,"pm10":3.5651838779449463,"stations":4},{"datetime_utc":"2026-05-28T10:00:00Z","aqi":16,"aqi_min":16,"aqi_max":16,"pm25":3.852672815322876,"pm10":3.9395105838775635,"stations":4},{"datetime_utc":"2026-05-28T11:00:00Z","aqi":17,"aqi_min":17,"aqi_max":17,"pm25":4.015506267547607,"pm10":4.179784297943115,"stations":4},{"datetime_utc":"2026-05-28T12:00:00Z","aqi":18,"aqi_min":18,"aqi_max":18,"pm25":4.324029445648193,"pm10":4.4230265617370605,"stations":4},{"datetime_utc":"2026-05-28T13:00:00Z","aqi":17,"aqi_min":17,"aqi_max":17,"pm25":4.13213586807251,"pm10":4.183070659637451,"stations":4},{"datetime_utc":"2026-05-28T14:00:00Z","aqi":15,"aqi_min":15,"aqi_max":15,"pm25":3.5690722465515137,"pm10":3.7567391395568848,"stations":4},{"datetime_utc":"2026-05-28T15:00:00Z","aqi":17,"aqi_min":17,"aqi_max":17,"pm25":4.10138463973999,"pm10":4.214081764221191,"stations":4},{"datetime_utc":"2026-05-28T16:00:00Z","aqi":24,"aqi_min":24,"aqi_max":24,"pm25":5.6712822914123535,"pm10":5.694843769073486,"stations":4},{"datetime_utc":"2026-05-28T17:00:00Z","aqi":18,"aqi_min":18,"aqi_max":18,"pm25":4.289728164672852,"pm10":4.408631324768066,"stations":4},{"datetime_utc":"2026-05-28T18:00:00Z","aqi":16,"aqi_min":16,"aqi_max":16,"pm25":3.791776418685913,"pm10":4.077582359313965,"stations":4},{"datetime_utc":"2026-05-28T19:00:00Z","aqi":26,"aqi_min":26,"aqi_max":26,"pm25":6.281116962432861,"pm10":6.528295040130615,"stations":4},{"datetime_utc":"2026-05-28T20:00:00Z","aqi":36,"aqi_min":36,"aqi_max":36,"pm25":8.571979522705078,"pm10":9.231486320495605,"stations":4},{"datetime_utc":"2026-05-28T21:00:00Z","aqi":14,"aqi_min":14,"aqi_max":14,"pm25":3.281581163406372,"pm10":3.9869096279144287,"stations":4},{"datetime_utc":"2026-05-28T22:00:00Z","aqi":8,"aqi_min":8,"aqi_max":8,"pm25":2.0386338233947754,"pm10":2.3393959999084473,"stations":3},{"datetime_utc":"2026-05-28T23:00:00Z","aqi":17,"aqi_min":17,"aqi_max":17,"pm25":4.170000076293945,"pm10":4.170000076293945,"stations":1},{"datetime_utc":"2026-05-29T00:00:00Z","aqi":5,"aqi_min":5,"aqi_max":5,"pm25":1.1136939525604248,"pm10":1.1136939525604248,"stations":2},{"datetime_utc":"2026-05-29T01:00:00Z","aqi":9,"aqi_min":9,"aqi_max":9,"pm25":2.259999990463257,"pm10":3.180000066757202,"stations":1},{"datetime_utc":"2026-05-29T02:00:00Z","aqi":7,"aqi_min":7,"aqi_max":7,"pm25":1.6167123317718506,"pm10":1.6781469583511353,"stations":2},{"datetime_utc":"2026-05-29T03:00:00Z","aqi":9,"aqi_min":9,"aqi_max":9,"pm25":2.112647771835327,"pm10":2.112647771835327,"stations":2},{"datetime_utc":"2026-05-29T04:00:00Z","aqi":8,"aqi_min":8,"aqi_max":8,"pm25":1.9114558696746826,"pm10":2.7237706184387207,"stations":3},{"datetime_utc":"2026-05-29T05:00:00Z","aqi":16,"aqi_min":16,"aqi_max":16,"pm25":3.849163293838501,"pm10":4.062550067901611,"stations":2},{"datetime_utc":"2026-05-29T06:00:00Z","aqi":7,"aqi_min":7,"aqi_max":7,"pm25":1.6852836608886719,"pm10":1.8575149774551392,"stations":3},{"datetime_utc":"2026-05-29T07:00:00Z","aqi":64,"aqi_min":64,"aqi_max":64,"pm25":18.459569931030273,"pm10":19.012876510620117,"stations":2},{"datetime_utc":"2026-05-29T08:00:00Z","aqi":15,"aqi_min":15,"aqi_max":15,"pm25":3.559999942779541,"pm10":3.640000104904175,"stations":1},{"datetime_utc":"2026-05-29T09:00:00Z","aqi":10,"aqi_min":10,"aqi_max":10,"pm25":2.3231117725372314,"pm10":2.471703052520752,"stations":2},{"datetime_utc":"2026-05-29T10:00:00Z","aqi":13,"aqi_min":13,"aqi_max":13,"pm25":3.1700000762939453,"pm10":3.1700000762939453,"stations":1},{"datetime_utc":"2026-05-29T11:00:00Z","aqi":10,"aqi_min":10,"aqi_max":10,"pm25":2.4100000858306885,"pm10":2.4100000858306885,"stations":1},{"datetime_utc":"2026-05-29T12:00:00Z","aqi":6,"aqi_min":6,"aqi_max":6,"pm25":1.5499999523162842,"pm10":1.5499999523162842,"stations":1},{"datetime_utc":"2026-05-29T13:00:00Z","aqi":5,"aqi_min":5,"aqi_max":5,"pm25":1.159999966621399,"pm10":1.159999966621399,"stations":1},{"datetime_utc":"2026-05-29T14:00:00Z","aqi":8,"aqi_min":8,"aqi_max":8,"pm25":1.9559894800186157,"pm10":1.9559894800186157,"stations":2},{"datetime_utc":"2026-05-29T15:00:00Z","aqi":5,"aqi_min":5,"aqi_max":5,"pm25":1.2000000476837158,"pm10":1.2000000476837158,"stations":1},{"datetime_utc":"2026-05-29T16:00:00Z","aqi":6,"aqi_min":6,"aqi_max":6,"pm25":1.3899999856948853,"pm10":1.3899999856948853,"stations":1},{"datetime_utc":"2026-05-29T17:00:00Z","aqi":4,"aqi_min":4,"aqi_max":4,"pm25":1.0,"pm10":1.0,"stations":1},{"datetime_utc":"2026-05-29T18:00:00Z","aqi":7,"aqi_min":7,"aqi_max":7,"pm25":1.7699999809265137,"pm10":1.7699999809265137,"stations":1},{"datetime_utc":"2026-05-29T19:00:00Z","aqi":20,"aqi_min":20,"aqi_max":20,"pm25":4.760000228881836,"pm10":5.579999923706055,"stations":1},{"datetime_utc":"2026-05-29T20:00:00Z","aqi":7,"aqi_min":7,"aqi_max":7,"pm25":1.6702940464019775,"pm10":1.7180554866790771,"stations":2},{"datetime_utc":"2026-05-29T21:00:00Z","aqi":15,"aqi_min":15,"aqi_max":15,"pm25":3.509999990463257,"pm10":3.509999990463257,"stations":1},{"datetime_utc":"2026-05-29T22:00:00Z","aqi":9,"aqi_min":9,"aqi_max":9,"pm25":2.1500000953674316,"pm10":2.1500000953674316,"stations":1},{"datetime_utc":"2026-05-29T23:00:00Z","aqi":10,"aqi_min":10,"aqi_max":10,"pm25":2.4800000190734863,"pm10":3.200000047683716,"stations":1},{"datetime_utc":"2026-05-30T00:00:00Z","aqi":7,"aqi_min":7,"aqi_max":7,"pm25":1.7400000095367432,"pm10":1.7400000095367432,"stations":1}],"daily":[{"date":"2026-05-28","aqi_avg":24,"aqi_min":8,"aqi_max":45,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":5.8,"pm10_avg":6.1,"hours":23,"stations_avg":4},{"date":"2026-05-29","aqi_avg":11,"aqi_min":4,"aqi_max":64,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":2.9,"pm10_avg":3.1,"hours":24,"stations_avg":2},{"date":"2026-05-30","aqi_avg":7,"aqi_min":7,"aqi_max":7,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":1.7,"pm10_avg":1.7,"hours":1,"stations_avg":1}]}